Caustics don't give the same look as photons do,
for obvious reasons.

I think I'll just stick to white photons and
leave the photons out. It's also very
probable that you don't observe this
kind of dispersion very much, and then
this tiny detail may be not worth the
parsing time (2.5 hours and doesn't look
good = more time perhaps better?)

Thanks for sharing your experience!

Peter Popov wrote:

> When Darren came out with the dispersion patch, it didn't do caustics
> (and photons weren't around yet IIRC), so I tried to fake it with
> light sources. The idea is to use quite a few light sources in line
> colored like the spectrum and use caustics (or now photons). Not too
> realistic but looks good at least.
>
> The attached image is an example. The dispersion inside the orb comes
> from Darren's patch, the dispersion in the faked caustics was made
> with that trick.
>
> It used to be a nice trick before dispersion + photons came out. I
> don't know why they didn't work in your case, too low dispersion
> maybe?
>
> Peter Popov ICQ : 15002700
> Personal e-mail : pet### [at] vipbg
> TAG      e-mail : pet### [at] tagpovrayorg

--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde

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